"There was no one in his life more ready to go to the wall for him when it came to him being sober. She was an unbelievably stabilizing force in his life.

"She was deeply helpful and effective in keeping Mac sober and helping him get sober. And she was all about him being healthy, period, in this area of his life."

Shortly after Miller's death, people started blaming Grande for Miller's death on her Instagram page, leading her to disable comments altogether. Many fans came to her defense, saying it was "disgusting" that she was being blamed.